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High output efficiency (340 lm/W) in a one wavelength microcavity OLED with emitter layer positioned at an anti-node

Authors
  • Nelson, Mitchell C.
Type
Preprint
Publication Date
May 22, 2015
Submission Date
Mar 06, 2015
Identifiers
arXiv ID: 1503.02093
Source
arXiv
License
Yellow
External links

Abstract

An OLED architecture is described in which a thin emitter layer is located at the anti-node of a resonant microcavity. In two realizations, the mode space is constrained by either multi-layer mirrors or by an emitter with transition dipole moments oriented normal to the vertical mode of the device. The multi-layer mirror device achieves 315 lm/W and the oriented emitter device achieves 340 lm/W. Output is observed to be linear in current and efficiency increases with power. This is in agreement with a proposed theoretical model for a microcavity device with emitter located at an anti-node where spontaneous emission is suppressed.

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